MIXl'TES OF THK IXSTITUTK. 167 



and officers. Mrs. Julia \V., Barker, of Media, was elected 

 to membership. The following donations to the library were 

 announced: "A New Radiation Pyrometer," by C. B. 

 Thwing ; "African Characinid Fishes," by C. A. Cocherell. 

 Under scientific business Henry L. Broomall gave a talk upon 

 the changes of English vowel sounds, illustrating the subject 

 by diagrams, examples, etc. After general discussion the 

 meeting adjourned. 



July 7, 1910. — Regular monthly meeting, President T. 

 Chalkley Palmer in the chair. Reports of curators, commit- 

 tees, etc. Donations to the library were announced as fol- 

 lows : "Description of a New Sub-species of an African 

 Monkey," " Recalculation of Atomic Weights," " Mechanics 

 of the Earth's Atmosphere." Under the head of scientific 

 business President T. Chalkley Palmer described the sounds 

 made by some turkeys observed by him which indicated 

 almost a language. It appeared that one sound emitted by 

 the old bird sent the obedient young ones to cover in a hurry 

 and that subsequently an entirely different sound brought 

 them into the open again, when the danger had passed. The 

 balance of the evening was occupied by Henr}- L. Broomall 

 in a lengthy talk on the laws of phonetic changes of words 

 in passing from one language to another. Adjourned. 



